Biology Chapter 1: Nutrition in Plants - MCQs
Here is a comprehensive set of 15 multiple-choice questions covering all the key topics from Class 7 CBSE Biology Chapter 1: "Nutrition in Plants". The questions cover:
- Photosynthesis process and requirements
- Chlorophyll and chloroplasts
- Raw materials and products of photosynthesis
- Types of nutrition (autotrophic and heterotrophic)
- Parasitic, saprophytic, and insectivorous plants
- Plant structures like stomata
- Tests for starch detection
- Symbiotic relationships
Multiple Choice Questions (15 Questions)
Instructions: Choose the correct answer for each question.
1. The process by which green plants make their own food is called: a) Respiration b) Photosynthesis c) Transpiration d) Excretion
2. Which of the following is NOT required for photosynthesis? a) Sunlight b) Carbon dioxide c) Water d) Oxygen
3. The green pigment present in leaves that helps in photosynthesis is: a) Xanthophyll b) Carotene c) Chlorophyll d) Anthocyanin
4. The raw materials for photosynthesis are: a) Carbon dioxide and oxygen b) Water and oxygen c) Carbon dioxide and water d) Glucose and oxygen
5. Which part of the plant cell contains chlorophyll? a) Nucleus b) Cytoplasm c) Chloroplasts d) Vacuole
6. The products of photosynthesis are: a) Carbon dioxide and water b) Glucose and oxygen c) Water and oxygen d) Carbon dioxide and glucose
7. Plants that cannot make their own food are called: a) Autotrophs b) Heterotrophs c) Producers d) Primary consumers
8. An example of a parasitic plant is: a) Cuscuta (Dodder) b) Rose c) Mango d) Banyan
9. Which of the following is a saprophytic plant? a) Mushroom b) Mango tree c) Rose plant d) Grass
10. The tiny pores present on the surface of leaves are called: a) Veins b) Stomata c) Chloroplasts d) Guard cells
11. Insectivorous plants eat insects because they grow in soil that lacks: a) Water b) Sunlight c) Nitrogen d) Carbon dioxide
12. An example of an insectivorous plant is: a) Rose b) Venus flytrap c) Mango d) Banyan
13. The loss of water from leaves in the form of water vapor is called: a) Photosynthesis b) Respiration c) Transpiration d) Absorption
14. Which test is used to detect the presence of starch in leaves? a) Benedict's test b) Iodine test c) Fehling's test d) Biuret test
15. Symbiotic relationship between algae and fungi is found in: a) Mushrooms b) Lichens c) Cuscuta d) Pitcher plant
Answer Key
- b) Photosynthesis - Green plants make their food through photosynthesis
- d) Oxygen - Oxygen is produced during photosynthesis, not required
- c) Chlorophyll - The green pigment that captures sunlight
- c) Carbon dioxide and water - These are the raw materials for photosynthesis
- c) Chloroplasts - Chlorophyll is present in chloroplasts
- b) Glucose and oxygen - These are the end products of photosynthesis
- b) Heterotrophs - Plants that depend on others for food
- a) Cuscuta (Dodder) - A parasitic plant that depends on host plants
- a) Mushroom - Fungi are saprophytic organisms
- b) Stomata - Tiny pores for gas exchange
- c) Nitrogen - Insectivorous plants get nitrogen from insects
- b) Venus flytrap - A well-known insectivorous plant
- c) Transpiration - Loss of water vapor from leaves
- b) Iodine test - Iodine turns blue-black in presence of starch
- b) Lichens - Symbiotic association of algae and fungi
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